Rejuvenating Idle Land to Sustainable Urban form: Case Study of Bandung Metropolitan Area, Indonesia

In the urban sustainability context, there is a growing concern about social, economic, and environmental costs of sprawling urban development patterns.Idle landis one indicator of that sprawl. This paper aims to investigate the relation of urban physical growth to the expansion of idle land and its effects to the urban environment sustainability. This paper also examines the land rejuvenation as the method to manage the growth of idle lands in urban areas. This paper takes Bandung Metropolitan Area (BMA), one of the metropolitan areas in Indonesia that has basin shape restricted to the urban physical expansion, as a case study. This paper uses system dynamic approach in simulating the behaviour of urban physical growth, the idle land expansions, and their effects to the urban carrying capacity. This research finds that the urban achieved more sustainable from the potential management of physically vacant lands, abandoned buildings, critical land management, increasing revenue, and reduced conflict. The simulation result also finds that BMA will not be sustainedwhen the population grows and continuously occupies the preservation and conservation lands (PCL) in outskirt as urban carrying capacity. It is especially in 2051 when PCLwill be reduced and continuously degrade under 30% of green area as spatial planning requirement, unless the rejuvenation of the idle lands is implemented as the interventions to manage this sprawl urban areas.By using idle land rejuvenation, urban will be more sustainable andpeople could live in high quality of urban environment.